PLAU and neoplasm: In tumour tissue extracts, we detected a strong correlation between uPA-T and uPAR-T (rs=0.84, P<0.001) or PAI-1-T (rs=0.69, P<0.001), and between uPAR-T and PAI-1-T (rs=0.83, P<0.001) antigen levels (Table 2).